Relieves cold and cough: Black pepper has antibacterial properties, and therefore it helps to cure cold and cough. A teaspoon of honey with freshly crushed pepper can do wonders. It also helps to alleviate chest congestion, often caused due to pollution, flu, or a viral infection. You can add it to hot water and eucalyptus oil and take steam. And given that black pepper is rich in Vitamin C, it also works as a good antibiotic.